With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfmFlowIpAddrSrc
Cisco Flow Monitor Flow Ip Address Source
1.3.6.1.4.1.9.9.692.1.2.5.1.3
This object indicates the source IP address of the corresponding traffic flow.
Back to CISCO-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cfmFlowIpAddrSrc on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.